40006682 has 8 divisors (see below), whose sum is σ = 61286976. Its totient is φ = 19577692.

The previous prime is 40006663. The next prime is 40006697. The reversal of 40006682 is 28660004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212708 + ... + 212895.

It is an arithmetic number, because the mean of its divisors is an integer number (7660872).

Almost surely, 2^40006682 is an apocalyptic number.

40006682 is a deficient number, since it is larger than the sum of its proper divisors (21280294).

40006682 is a wasteful number, since it uses less digits than its factorization.

40006682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425652.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 40006682 is about 6325.0835567603. The cubic root of 40006682 is about 342.0142317072.

Adding to 40006682 its reverse (28660004), we get a palindrome (68666686).

The spelling of 40006682 in words is "forty million, six thousand, six hundred eighty-two".